Problem opening firewall port

I have ISPConfig installed on a Fedora Core 4 box. ISPConfig is working perfectly. However, I also want to use my computer as a samba file server. I need to open up a few firewall ports to do this. I used the ISPConfig control panel and tried to open port 137. I restarted the firewall using the control panel. Before and after I did this, I ran nmap and got the following output:

Starting nmap 3.81 ( http://www.insecure.org/nmap/ ) at 2005-08-05 13:54 EDT
Interesting ports on ddnsserver1.hopto.org (192.168.0.10):
(The 1644 ports scanned but not shown below are in state: closed)
PORT STATE SERVICE
21/tcp open ftp
22/tcp open ssh
25/tcp open smtp
53/tcp open domain
80/tcp open http
81/tcp open hosts2-ns
110/tcp open pop3
111/tcp open rpcbind
139/tcp open netbios-ssn
143/tcp open imap
443/tcp open https
445/tcp open microsoft-ds
734/tcp open unknown
761/tcp open kpasswd
993/tcp open imaps
995/tcp open pop3s
2049/tcp open nfs
3306/tcp open mysql
32770/tcp open sometimes-rpc3

Nmap finished: 1 IP address (1 host up) scanned in 0.253 seconds

As the listing shows, port 137 is not open. How can I open up port 137?

I have ISPConfig installed on a Fedora Core 4 box. ISPConfig is working perfectly. However, I also want to use my computer as a samba file server. I need to open up a few firewall ports to do this. I used the ISPConfig control panel and tried to open port 137. I restarted the firewall using the control panel. Before and after I did this, I ran nmap and got the following output:

Starting nmap 3.81 ( http://www.insecure.org/nmap/ ) at 2005-08-05 13:54 EDT
Interesting ports on ddnsserver1.hopto.org (192.168.0.10):
(The 1644 ports scanned but not shown below are in state: closed)
PORT STATE SERVICE
21/tcp open ftp
22/tcp open ssh
25/tcp open smtp
53/tcp open domain
80/tcp open http
81/tcp open hosts2-ns
110/tcp open pop3
111/tcp open rpcbind
139/tcp open netbios-ssn
143/tcp open imap
443/tcp open https
445/tcp open microsoft-ds
734/tcp open unknown
761/tcp open kpasswd
993/tcp open imaps
995/tcp open pop3s
2049/tcp open nfs
3306/tcp open mysql
32770/tcp open sometimes-rpc3

Nmap finished: 1 IP address (1 host up) scanned in 0.253 seconds

As the listing shows, port 137 is not open. How can I open up port 137?

Samba is running and working correctly. Also, I am aware of the command iptables -L listing the ports but the installation instructions for ISPConfig instructed me to turn the firewall off. This is why I used the command nmap to show the ports that are actually open.

Samba is running and working correctly. Also, I am aware of the command iptables -L listing the ports but the installation instructions for ISPConfig instructed me to turn the firewall off. This is why I used the command nmap to show the ports that are actually open.

I was wondering if this could be an installation problem. I followed the installation instructions for Fedora Core 4. However, instead of selecting the indicated packages to install, I selected everything. Is it possible that selecting everything to install is adding something that is setting up the firewall?

I used the ISPConfig control panel at Management->Server->Services to try and open port 137. After I tried to open the port I ran the nmap command. The nmap command shows that port 137 is still closed. This thread is asking if anyone knows why port 137 is still closed even though the ISPConfig control panel was used to open port 137.

The nmap command shows that the ports are closed. However, I got on my Windows XP machine and my file share worked perfectly. The conclusion, therefore, seems to be, don't trust nmap to tell you what is actually open.